Astigmatism is an optical refractive error in which the eye does not focus light evenly onto the retina, resulting in blurred vision. It can be caused by an irregularly shaped cornea or lens, or by the curvature of the cornea or lens being different in different meridians.
The primary treatment for astigmatism is corrective lenses, such as eyeglasses or contact lenses. The lenses are used to correct the eye's focusing power, which can improve vision. Surgery is another option for treating astigmatism, however, it is only recommended for those with more severe cases.
Lifestyle changes, such as increasing one's intake of vitamins and minerals, may also help to improve astigmatism. Increasing the intake of vitamin A, which plays a role in maintaining healthy eyesight, has been found to be effective in improving vision in those with astigmatism. Eating a balanced diet, rich in fruits and vegetables, can also be beneficial. Additionally, it is important to get enough sleep and to reduce stress, as both can have a negative impact on vision.
In some cases, astigmatism can be improved with vision therapy, a type of treatment that can involve exercises to improve focusing and tracking skills, eye coordination, and the ability to accurately gauge distances. It can also involve activities to improve eye-hand coordination, such as playing catch or doing puzzles.
Finally, it is important to protect the eyes from ultraviolet (UV) radiation, as this can worsen astigmatism. Wearing sunglasses that provide UV protection is recommended. It is also important to have regular eye exams, so any changes in vision can be detected and treated promptly.